From 61bf430d5267d1d3029e1415cce0e932621a3473 Mon Sep 17 00:00:00 2001 From: matz Date: Tue, 13 Mar 2001 05:45:13 +0000 Subject: * io.c (argf_seek_m): wrong calling sequence of rb_io_seek(). * parse.y (cond0): no special treatment of string literal in condition. * math.c: add acos, asin, atan, conh, sinh, tanh and hypot to Math. * configure.in: check hypot availablility. * missing/hypot.c: public domain rewrite of hypot. * parse.y (warn_unless_e_option): warning condition was wrong. * parse.y (warning_unless_e_option): ditto. * enum.c (enum_all): new method 'all?', which returns true if block returns true for all elements. * enum.c (enum_any): new method 'any?', which returns true if block retruns true for any of elements. * marshal.c (marshal_load): do not give warning unless explicitly set to verbose. * eval.c (rb_exit): give string value "exit" to SystemExit. * ruby.c (proc_options): -v should not print version if proc_options called via moreswitches(). * parse.y (stmt): while/until modifier must work for empty body. git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@1241 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- missing/hypot.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 missing/hypot.c (limited to 'missing') diff --git a/missing/hypot.c b/missing/hypot.c new file mode 100644 index 000000000..aad5259e9 --- /dev/null +++ b/missing/hypot.c @@ -0,0 +1,17 @@ +/* public domain rewrite of hypot */ + +#include + +double hypot(x,y) + double x, y; +{ + if (x < 0) x = -x; + if (y < 0) y = -y; + if (x < y) { + double tmp = x; + x = y; y = tmp; + } + if (y == 0.0) return x; + y /= x; + return x * sqrt(1.0+y*y); +} -- cgit